CN102789079B

CN102789079B - Display unit, barrier device, and method of driving display unit

Info

Publication number: CN102789079B
Application number: CN201210148652.0A
Authority: CN
Inventors: 中畑佑治
Original assignee: Sony Corp
Current assignee: Sony Corp
Priority date: 2011-05-20
Filing date: 2012-05-14
Publication date: 2017-04-12
Anticipated expiration: 2032-05-14
Also published as: CN102789079A; TW201306010A; US8953106B2; JP2012242673A; KR20120130044A; US20120293500A1; TWI456557B; KR101974217B1

Abstract

A display unit includes: a display section; a barrier section including a plurality of liquid crystal barriers switching an open state and a closed state; and a barrier driving section driving the barrier section with one or a plurality of barrier drive signals. Each of the barrier drive signals is a signal including a first waveform portion being configured of a series of waveforms allowing the liquid crystal barriers to be held in an open state over a plurality of frames, or a second waveform portion being configured of a series of waveforms to allowing the liquid crystal barriers to be switched between an open state and a closed state, and a third waveform portion being located just before the first or second waveform portion and having an average pulse height value smaller than a maximum value of a pulse height value of the first or second waveform portion.

Description

Display unit, barrier device and the method for driving display unit

Technical field

It relates to a kind of disparity barrier for being capable of stereo display（parallax barrier）The display unit of type, Method of the barrier device used in this display unit with the display unit is driven.

Background technology

In recent years, can realize that the display unit of stereo display arouses attention.Three-dimensional display shows to have each other and regards Difference component（Different visual angles）Left-eye image and eye image so that spectators with their right and left eyes by watching those images In each image and recognize that those images are the stereo-pictures with depth.And, display unit also has been developed that into energy It is enough to provide more natural stereo-picture to spectators by showing three or more images with parallax component each other.These Display unit includes the display unit of parallax barrier-type.Such display unit shows there is parallax component each other simultaneously Multiple images（Fluoroscopy images）, and according to the relative position relation between display unit and the visual angle of spectators（Angle）So that institute The image of viewing is different.For example, Japanese Unexamined Patent Application Publication No.2009-104105 discloses one kind and uses liquid crystal apparatus As the parallax barrier-type display unit of barrier.

Meanwhile, for example, in liquid crystal display（LCD）In unit, VA (vertical orientated) mode liquid crystal is usually used.Such In liquid crystal display, work as no applied voltage（It is closed）When, liquid crystal molecule and its longitudinal direction perpendicular to substrate surface Direction is alignd, and works as applied voltage（In open mode）When, it is oriented as according to the amplitude liquid crystal molecule of voltage oblique（Incline Tiltedly）.Therefore, when liquid crystal layer is applied a voltage in the state of no applied voltage, and it is oriented to be hung down with substrate surface Straight liquid crystal molecule is oblique, and they are oblique in any direction, and this may cause the orientation riot of liquid crystal molecule.In such case Under, in such liquid crystal display, the response to voltage is slower.

As a result, the direction oblique during reaction time in order to control liquid crystal molecule, has employed a kind of advance By Liquid Crystal Molecules Alignment into towards the inclined method of specific direction（So-called pre-tilt）.For example, Japanese laid-open patent application is public Open No. 2003-279946 and No. 2006-330638 and propose a kind of PSA（Polymer-stabilized alignment）Method, wherein in picture Multiple slits are provided on plain electrode（slit）To accommodate the liquid crystal molecule in pre-tilt state using polymer.According to utilization This method of pre-tilt, it is possible to increase the voltage response characteristic of liquid crystal molecule.

The content of the invention

For the parallax barrier-type display unit of this use liquid crystal barrier, the quick opening/closing operation of liquid crystal barrier It is preferable.

It is desirable that providing a kind of display unit of the response time that can reduce liquid crystal barrier, barrier device and drive The method for moving the display unit.

A kind of display unit according to the embodiment of the present disclosure includes：Display unit；Barrier means, including switching open mode With multiple liquid crystal barriers of closed mode；With barrier driver part, driven using one or more barrier drive signals described Barrier means.Each in the barrier drive signal is the signal for including following part：Liquid is allowed by during multiple frames Brilliant barrier is maintained at the first waveform part that a series of waveforms of open mode are constituted, or by permission liquid crystal barrier in open shape The second waveform portion that a series of waveforms switched between state and closed mode are constituted, and the 3rd waveform portion, it is located just at Before first waveform part or the second waveform portion, and with the pulse height than first waveform part or the second waveform portion The maximum of value wants little average pulse height value.

A kind of barrier device according to the embodiment of the present disclosure includes：Barrier means, including switching open mode and closing shape Multiple liquid crystal barriers of state；With barrier driver part, using one or more barrier drive signals barrier means are driven.It is described Each in barrier drive signal is the signal for including following part：Beaten by allowing liquid crystal barrier to be maintained at during multiple frames The first waveform part that a series of waveforms of open state are constituted, or by permission liquid crystal barrier open mode and closed mode it Between a series of the second waveform portion for constituting of waveforms for switching, and the 3rd waveform portion, its be located just at first waveform part or Before second waveform portion, and with less than the maximum of first waveform part or the pulse height value of the second waveform portion Average pulse height value.

A kind of method for driving display unit according to the embodiment of the present disclosure, methods described includes：By one or more barriers Drive signal is supplied to multiple liquid crystal barriers of switching open mode and closed mode；With the display image in display unit.Institute Each stated in barrier drive signal includes：The a series of of open mode are maintained at by liquid crystal barrier is allowed during multiple frames Waveform constitute first waveform part, or by permission liquid crystal barrier switch between open mode and closed mode it is a series of The second waveform portion that waveform is constituted, and the 3rd waveform portion, it is located just at first waveform part or the second corrugated part divides it Before, and with the average pulse height less than the maximum of first waveform part or the pulse height value of the second waveform portion Value.

In the method for the display unit according to the embodiment of the present disclosure, barrier device and driving display unit, by causing Multiple liquid crystal barriers are in open mode, and spectators see the image shown in display unit.At this moment, will be with just The barrier drive signal of the 3rd waveform portion before one waveform portion or the second waveform portion is supplied to liquid crystal barrier.

The method of display unit, barrier device and driving display unit according to the embodiment of the present disclosure is used to have and just existed The barrier drive signal of the 3rd waveform portion before first waveform part or the second waveform portion, so that liquid crystal barrier Response time reduces.

It will be understood that, common description and detailed description below above are exemplary, and are intended to provide request guarantor The technology of shield is explained further.

Description of the drawings

Accompanying drawing is included to further understand the disclosure, and is merged in this specification and is constituted one of this specification Point.Accompanying drawing illustrates embodiment and is used to explain the principle of this technology together with description.

Fig. 1 is the block diagram of the configuration example for illustrating stereoscopic display unit in accordance with an embodiment of the present disclosure.

Fig. 2 is the block diagram of the configuration example for illustrating the display driver part shown in Fig. 1.

Each in Fig. 3 A and Fig. 3 B is the explanatory diagram of the configuration example for illustrating the display unit shown in Fig. 1.

Each in Fig. 4 A and Fig. 4 B is the explanatory diagram of the configuration example for illustrating the barrier means shown in Fig. 1.

Fig. 5 is the explanatory diagram of the configuration example for illustrating the transparency electrode in the barrier means shown in Fig. 1.

Fig. 6 is the explanatory diagram of the orientation for illustrating the liquid crystal molecule in the barrier means shown in Fig. 1.

Fig. 7 is the oscillogram of the barrier drive signal shown in Fig. 1.

Fig. 8 is the oscillogram of another barrier drive signal shown in Fig. 1.

Fig. 9 is the explanatory diagram of the group configuration example for illustrating the liquid crystal barrier shown in Fig. 1.

Each in Figure 10 A to Figure 10 C is the operation example for illustrating display unit and barrier means shown in Fig. 1 Pattern figure.

Each in Figure 11 A to Figure 11 B is the pattern of the operation example for illustrating the stereoscopic display unit shown in Fig. 1 Figure.

Figure 12 is the timing waveform figure of the operation example for illustrating the stereoscopic display unit shown in Fig. 1.

Figure 13 is the timing waveform figure of another operation example for illustrating the stereoscopic display unit shown in Fig. 1.

Figure 14 is the timing waveform figure of another operation example for illustrating the stereoscopic display unit shown in Fig. 1.

Figure 15 is the timing waveform figure of the operation example for illustrating the stereoscopic display unit according to comparative examples.

Each in Figure 16 A to Figure 16 G is the barrier drive signal for illustrating the modified example according to the embodiment of the present disclosure Waveform example oscillogram.

Each in Figure 17 A to Figure 17 C is that the barrier for illustrating another modified example according to the embodiment of the present disclosure drives The oscillogram of the waveform example of signal.

Figure 18 is determining for the waveform example of the barrier drive signal for illustrating another modified example according to the embodiment of the present disclosure When oscillogram.

Figure 19 is determining for the operation example of the stereoscopic display unit for illustrating another modified example according to the embodiment of the present disclosure When oscillogram.

Figure 20 is determining for the operation example of the stereoscopic display unit for illustrating another modified example according to the embodiment of the present disclosure When oscillogram.

Figure 21 is the figure of the operation example of the stereoscopic display unit for illustrating another modified example according to the embodiment of the present disclosure Case figure.

Figure 22 is determining for the operation example of the stereoscopic display unit for illustrating another modified example according to the embodiment of the present disclosure When oscillogram.

Figure 23 is the explanatory diagram of the configuration example of the transparency electrode for illustrating another modified example according to the embodiment of the present disclosure.

Figure 24 is the side of the configuration example of the stereoscopic display unit for illustrating another modified example according to the embodiment of the present disclosure Block diagram.

Figure 25 A and Figure 25 B are the operations of the stereoscopic display unit for illustrating another modified example according to the embodiment of the present disclosure The pattern figure of example.

Specific embodiment

Hereinafter, embodiment of the disclosure will be described in detail with reference to the attached drawings.

[configuration example]

（Overall arrangement example）

Fig. 1 shows the configuration example of stereoscopic display unit in accordance with an embodiment of the present disclosure.It should be noted that according to the disclosure The barrier device of embodiment and the method for driving display unit are also described together with the embodiment, because both of which is embodied in In the present embodiment of the disclosure.Stereoscopic display unit 1 includes that control unit 40, backlight drive part 42, backlight 30, display drive Part 50, display unit 20, barrier driver part 41 and barrier means 10.

Control unit 40 is for controlling backlight drive part 42, showing driver part 50 and barrier based on outside offer Picture signal Sdisp that driver part 41 is operated synchronously with one another supplies control signals to the electricity of each in these parts Road.Specifically, backlight control signal CBL is supplied to backlight drive part 42 by control unit 40, and based on picture signal Picture signal S is sent to display driver part 50 by Sdisp, while barrier control signal CBR is supplied to into barrier driver part 41.Using this structure, when stereoscopic display unit 1 is normally shown（Two dimension shows）During operation, as described later, picture signal S is made up of picture signal SS, and when stereoscopic display unit 1 carries out stereo display operation, picture signal S is by picture signal SA Constitute with SB, each in picture signal SA and SB includes multiple fluoroscopy images（It is in this example four fluoroscopy images）.

Backlight drive part 42 drives backlight 30 based on the backlight control signal CBL provided from control unit 40.Backlight 30 have the function that plane launching light is projected to display unit 20.Backlight 30 for example uses LED（Light emitting diode）、CCFL （Cold Cathode Fluorescent fluorescent tube）Deng composition.

Show that driver part 50 drives display unit 20 based on picture signal S provided from control unit 40.Display part Part 20 is in this example liquid crystal display component, by way of driving liquid crystal display to modulate from the light of the transmitting of backlight 30 Operation is shown to perform.

Barrier driver part 41 generates barrier drive signal based on barrier control signal CBR provided from control unit 40 DRV, by the signal for being generated barrier means 10 are supplied to.Barrier means 10 have multiple liquid crystal barriers 11 and 12（It is described later on） To be emitted through（Open mode）Or the light that stop is projected from backlight 30 and launched by display unit 20（Closed mode）. Herein, as described later, barrier drive signal DRV is included for driving the barrier drive signal DRVS of liquid crystal barrier 11, using In barrier drive signal DRVA (being described later on) for driving liquid crystal barrier 12A and for driving the barrier of liquid crystal barrier 12B to drive Signal DRVB（It is described later on）.

As shown in fig. 1, in stereoscopic display unit 1, with this suitable of backlight 30, display unit 20 and barrier means 10 Sequence places these parts.That is, spectators are reached via display unit 20 and barrier means 10 from the projected light of backlight 30.

（Show driver part 50 and display unit 20）

Fig. 2 shows the example of the block diagram for showing driver part 50 and display unit 20.Show that driver part 50 includes Timing controlled part 51, gate drivers 52 and data driver 53.The sum of 51 control gate driver of timing controlled part 52 According to the driving timing of driver 53, at the same picture signal S transmitted from control unit 40 is supplied to data driver 53 as Picture signal S1.For every a line of sequential lines scanning, the timing controlled that gate drivers 52 are performed in timing controlled part 51 Under be sequentially selected pixel Pix in display unit 20.Data driver 53 provides the picture element signal based on picture signal S1 To each pixel Pix in display unit 20.

Each in Fig. 3 A and Fig. 3 B shows the configuration example of display unit 20, and wherein Fig. 3 A illustrate pixel Pix Circuit diagram example, and Fig. 3 B illustrate the cross-sectional structure of display unit 20.

As shown in fig. 3, pixel Pix includes TFT（Thin film transistor (TFT)）Device Tr, liquid crystal device LC and holding capacitor device Device C.TFT devices Tr is for example by MOS-FET（Metal-oxide semiconductor (MOS)-field-effect transistor）Constitute, its grid is connected to Gate lines G, source electrode is connected to data wire D, and drain electrode is connected to the first end and holding capacitor device device C of liquid crystal device LC First end.For liquid crystal device LC, first end is connected to the drain electrode of TFT device Tr, and the second end is grounded.For holding capacitor Device device C, first end is connected to the drain electrode of TFT device Tr, and the second end is connected to holding capacitor device line Cs.Gate lines G connects To gate drivers 52, and data wire D is connected to data driver 53.

As shown in Figure 3 B, in display unit 20, liquid crystal layer 203 is disposed in driving substrate 201 and enumerator substrate Between 205 and sealed.Substrate 201 is driven to include the pixel-driving circuit with above-mentioned TFT devices Tr（Do not show in the figure Go out）, wherein be directed on substrate 201 each pixel Pix laying out pixel electrode 202 driving.On enumerator substrate 205, formed Colour filter and black matrix（Not shown in the figure）, and, in the face side of liquid crystal layer 203, it is right that counter electrode 204 is arranged to The public electrode of each pixel Pix.In the incident illumination side of display unit 20（It is in this case the side of backlight 30）And emergent light Side（It is in this case the side of barrier means 10）, polariser 206a and 206b are attached to each other to become cross Nicols each other Or parallel Nicolle.

（Barrier means 10 and barrier driver part 41）

Each in Fig. 4 A and Fig. 4 B shows the configuration example of barrier means 10, and wherein Fig. 4 A illustrate barrier means The structure configuration of the liquid crystal barrier on 10, and Fig. 4 B illustrate the IV-IV arrow views in the barrier means 10 shown in Fig. 4 A Cross-sectional structure on direction.It should be noted that in this example barrier means 10 perform just normally-black operation.It is, barrier means 10 stop light under non-driving condition.

Barrier means 10, so-called disparity barrier, with multiple liquid crystal barriers 11 and 12, they alternately arrange to launch By they light or stop light, as shown in Figure 4 A.These liquid crystal barriers 11 and 12 are carried out according to stereoscopic display unit 1 It is normal to show（Two dimension shows）Or stereo display is performing different operations.Specifically, as described later, liquid crystal barrier 11 is just Often show（Two dimension shows）Period is placed in open mode（Transmission state）, and be placed in off during stereo display（Stop State）.As described later, liquid crystal barrier 12 is placed in open mode during normal display, and operation carrys out base during stereo display Switch between open mode and closed mode in the time-division（Opening/closing operation）.

Liquid crystal barrier 11 and 12 is provided to extend in one direction on an x-y plane（For example, with vertical direction Y into The direction of predetermined angle theta）.For example, it is of about 18 degree that the angle, θ is allowed to setting.Using this structure, liquid crystal barrier 11 and 12 It is formed towards incline direction to extend, so as to allow the reduction ripple during stereo display to be likely to occur on display screen Probability and suppression resolution deteriorate.In this example, the width E2 of the width E1 of liquid crystal barrier 11 and liquid crystal barrier 12 that This is equal（E1=E2）.However, the amplitude relation not limited to this of the width of liquid crystal barrier 11 and 12, width E1 may be than width E2 It is bigger（E1>E2）Or it is alternatively less than width E2（E1<E2）.It should be noted that width E1 and E2 are according in display unit 20 Pixel Pix array pitch and shown fluoroscopy images perspective number determine.

As shown in Figure 4 B, barrier means 10 include being located at the liquid crystal layer driven between substrate 310 and enumerator substrate 320 19。

Substrate 310 is driven to include transparency carrier 13 and transparent electrode layer 15.Transparency carrier 13 is for example made up of glass.At it On, transparent electrode layer 15 is by middle polarization film（Not shown in figure）Make.Transparent electrode layer 15 is by such as ITO（Indium stannum Oxide）Transparent conductive film make.And, on transparent electrode layer 15, form the alignment films not shown in accompanying drawing.With Transparent electrode layer 15 etc. is formed on the surface for driving the surface on substrate 310 relative, adheres to polaroid 14.

Enumerator substrate 320 includes transparency carrier 16 and transparent electrode layer 17.It is similar with transparency carrier 13, transparency carrier 16 For example it is made up of glass.On transparency carrier 16, transparent electrode layer 17 is formed.It is similar with transparent electrode layer 15, transparent electrode layer 17 are made up of the transparent conductive film of such as ITO.And, on transparent electrode layer 17, form the alignment films not shown in accompanying drawing. On the surface relative with the surface that transparent electrode layer 17 etc. is formed on enumerator substrate 320, adhere to polaroid 18.Polaroid 14 and 18 are attached to each other to be each cross Nicols.Specifically, for example, using the transmission along horizontal direction X orientation Axle arranges polaroid 18 using the transmission axle being orientated along vertical direction Y arranging polaroid 14.

Liquid crystal layer 19 for example includes VA（It is vertical orientated）The liquid crystal molecule of type.These liquid crystal molecules are relative to for example as in Each axle of its major and minor axis of centre axle takes rotational symmetric shape, and negative permittivity anisotropic is presented（A kind of long axis direction On dielectric constant less than the dielectric constant on short-axis direction attribute）.

Transparent electrode layer 15 has multiple transparency electrodes 110 and 120.Barrier drive signal DRV is by barrier driver part 41 It is applied to each in transparency electrode 110 and 120.Transparent electrode layer 17 is provided as so-called public electrode, its cover with The corresponding position of multiple transparency electrodes 110 and 120, and common electric voltage Vcom is applied to transparent electrode layer 17.In the example In, common electric voltage Vcom is the DC voltage of 0V, although its not limited to this.Transparency electrode 110 in transparent electrode layer 15 and Liquid crystal barrier 11 is constituted with the corresponding part of transparency electrode 110 of liquid crystal layer 19 and transparent electrode layer 17.Similarly, transparency electrode Transparency electrode 120 in layer 15 and the corresponding part of the transparency electrode 120 composition liquid with liquid crystal layer 19 and transparent electrode layer 17 Brilliant barrier 12.It is arranged using this, in barrier means 10, voltage is selectively applied to the He of transparency electrode 110 120, and liquid crystal layer 19 carries out liquid crystal aligning according to the voltage for being applied, and is enable to in liquid crystal barrier 11 and 12 Each carry out opening/closing operation.

Fig. 5 shows the configuration example of the transparency electrode 110 and 120 in transparent electrode layer 15.Transparency electrode 110 and 120 In each there is main line part 61, the main line part 61 is with the bearing of trend identical direction with liquid crystal barrier 11 and 12 （With vertical direction Y into predetermined angle theta direction）Extend.In each in transparency electrode 110 and 120, along main line portion The bearing of trend for dividing 61 is provided side by side sub-electrode region 70.Each sub-electrode region 70 has main line part 62 and component 63.In this example, main line part 62 be formed to the direction that intersects with main line part 61 extend and with horizontal direction X Side into predetermined angle theta upwardly extends.In each sub-electrode region 70, there is provided by 62 points of main line part 61 and main line part From four stub areas（Domain）71 to 74.

Component 63 is formed in each of stub area 71 to 74 from main line part 61 and 62 to extend.Each The line width of component 63 is equal to each other in stub area 71 to 74.Similarly, the gap width of each component 63 Also it is equal to each other in stub area 71 to 74.Component 63 in each of stub area 71 to 74 is in the same direction Extend.The bearing of trend phase of the component 63 in the bearing of trend and stub area 73 of the component 63 in stub area 71 For vertical direction Y as axle is axisymmetric, and similarly, the bearing of trend of the component 63 in stub area 72 Bearing of trend with the component 63 in stub area 74 is axisymmetric relative to vertical direction Y as axle.And, point The bearing of trend of the component 63 in the bearing of trend and stub area 72 of the component 63 in region 71 is relative to work Horizontal direction X for axle is axisymmetric, and similarly, the bearing of trend of the component 63 in stub area 73 and branch The bearing of trend of the component 63 in region 74 is axisymmetric relative to horizontal direction X as axle.In this example, have Body ground, the component 63 in stub area 71 and 74 with horizontal direction X counterclockwise into predetermined angularOn the direction of rotation Extend, and the component 63 in stub area 72 and 73 with horizontal direction X clockwise into predetermined angularThe direction of rotation Upper extension., it is desirable to angleE.g. about 45 degree.

It should be noted that in this example, as described above, angleIt is desirable that about 45 degree, because in barrier means 10 The transmission axle of polaroid 14 and 18 be oriented to along horizontal direction X and vertical direction Y, although when the polaroid in barrier means 10 14 and 18 transmission axle along with horizontal direction X and vertical direction Y into about 45 degree of direction be oriented to when, angleIt is desirable that Ground is for example of about 0 and 90 degree.Such case is, for example, to use TN corresponding to display unit 20（Twisted nematic）The liquid crystal of liquid crystal The situation of display unit.

Fig. 6 shows the orientation of the liquid crystal molecule M without applied voltage in liquid crystal layer 19.In liquid crystal layer 19, with take It is oriented as being approximately perpendicular to substrate table away from one restriction of alignment films to the longitudinal direction of the liquid crystal molecule M near the interface of film After face, and the orientation of the liquid crystal molecule near interface, any other liquid crystal molecule（For example, the thickness side of liquid crystal layer 19 The liquid crystal molecule of immediate vicinity upwards）Also it is orientated in equivalent directions.

Using this configuration, when voltage is applied to transparency electrode 110 and 120 and transparent electrode layer 17 and liquid crystal layer When electric potential difference between voltage at 19 both sides becomes big, the light transmittance of liquid crystal layer 19 increases, and causes liquid crystal barrier 11 and 12 from resistance Gear state（Closed mode）It is changed into transmission state（Open mode）.At this moment by the component in transparency electrode 110 and 120 63 generate the electric field component on the direction parallel with substrate surface, and liquid crystal molecule M response is oblique in the voltage for being applied To causing liquid crystal barrier 11 and 12 to be changed into transmission state from blocked state.On the other hand, because electric potential difference diminishes, therefore liquid The longitudinal direction of brilliant molecule M causes liquid to reduce perpendicular to the direction of substrate surface orientation, and the light transmittance in liquid crystal layer 19 Brilliant barrier 11 and 12 is in blocked state（Closed mode）.

Fig. 7 shows the operation example of liquid crystal barrier 11 and 12.Fig. 7's（A）Show the waveform of barrier drive signal DRV Example, and Fig. 7（B）Show the light transmittance T of liquid crystal barrier 11 and 12.The example illustrate liquid crystal barrier 11 and 12 opening State（Transmission state）And closed mode（Blocked state）Between be based on sequentially from closed mode（Blocked state）It is changed into switching Mode of operation（Opening/closing operation state）Situation.

When liquid crystal barrier 11 and 12 is changed into opening/closing operation state from closed mode, barrier driver part 41 will shield Barrier drive signal DRV is supplied to liquid crystal barrier 11 and 12, such as Fig. 7（A）Shown in, the barrier drive signal DRV includes beating The opening/closing drive waveforms part Woc and prepared drive waveforms part Wpre being just arranged in before Woc.

It is for the repeatedly switchable liquid crystal between open mode and closed mode to beat opening/closing drive waveforms part Woc The waveform portion of barrier 11 and 12, and be in this example in-Vo, 0V and Vo（Vo is to open driving voltage）Between change Pulse signal.It is, it is with 0V to beat opening/closing drive waveforms part Woc（Vcom）Centered on to reduce in liquid crystal layer 19 The AC waveforms of the probability of the upper so-called burning that may occur.It is to enter liquid crystal barrier 11 and 12 to open to open driving voltage Vo Voltage needed for state, such as about 7V.When-Vo or Vo are provided to liquid crystal barrier 11 and 12, in the He of liquid crystal barrier 11 The absolute value of the electric potential difference between transparent electrode layer 15 and 17 in 12 at the both sides of liquid crystal layer 19 is changed in Vo, and liquid crystal layer 19 Liquid crystal molecule M response it is oblique in the voltage that this is applied.As a result, liquid crystal barrier 11 and 12 is in open mode（Transmission shape State）, wherein light transmittance T increases, such as Fig. 7（B）Shown in.On the other hand, 0V is provided to liquid crystal barrier 11 and 12, liquid crystal layer The absolute value of the electric potential difference between transparent electrode layer 15 and 17 at 19 both sides is changed into 0V, and the longitudinal direction of liquid crystal molecule M It is oriented as perpendicular to substrate surface.As a result, liquid crystal barrier 11 and 12 enters closed mode（Blocked state）, wherein light transmittance T Reduce, in Fig. 7（B）It is shown.

It is for preparing as initial step so that liquid crystal barrier 11 and 12 is entered to prepare drive waveforms part Wpre The waveform portion of opening/closing operation state, and be in this example the DC waveforms with pre- voltage Vpre.Herein, pre- electricity Pressure Vpre is less than the voltage for opening driving voltage Vo, for example, be of about 2V.Ripple is being driven with the preparation for applying thereon In the liquid crystal barrier 11 and 12 of shape part Wpre, the electric potential difference between transparent electrode layer 15 and 17 at the both sides of liquid crystal layer 19 it is exhausted Vpre is changed into value.At this moment, the longitudinal direction of the liquid crystal molecule M in liquid crystal layer 19 is oriented as relative to vertical with substrate surface Direction incline.In other words, each liquid crystal molecule M is orientated in the state of basic matching with preset bearing angular direction, and is not had There is riot.It should be noted that still in this condition, the light transmittance T of liquid crystal barrier 11 and 12 keeps sufficiently low, and liquid crystal barrier 11 It is kept closer in the state of closed mode with 12.And, drive ripple in preparation when opening/closing drive waveforms part Woc is beaten When being applied in after the Wpre of shape part, liquid crystal molecule M is allowed at short notice oblique.

Fig. 8 is another operation example of liquid crystal barrier 11 and 12.Fig. 8's（A）Show that barrier drive signal DRV's is another Waveform example, and Fig. 8（B）Show the light transmittance T of liquid crystal barrier 11 and 12.The example illustrate liquid crystal barrier 11 and 12 from Closed mode（Blocked state）It is changed into open mode（Transmission state）Situation.

When liquid crystal barrier 11 and 12 is changed into open mode from closed mode, barrier driver part 41 is by barrier drive signal DRV is supplied to liquid crystal barrier 11 and 12, such as Fig. 8（A）Shown in, the barrier drive signal DRV includes opening drive waveforms The part Wo and prepared drive waveforms part Wpre being just arranged in before Wo.

It is the waveform portion for liquid crystal barrier 11 and 12 to be maintained at open mode to open drive waveforms part Wo, and It is in this example in-Vo and Vo（Vo is to open driving voltage）Between change AC waveform pulse signals.When-Vo or Vo is carried During supply liquid crystal barrier 11 and 12, between the transparent electrode layer 15 and 17 in liquid crystal barrier 11 and 12 at the both sides of liquid crystal layer 19 The liquid crystal molecule M response that the absolute value of electric potential difference is changed in Vo, and liquid crystal layer 19 is oblique in the voltage that this is applied.As a result, Liquid crystal barrier 11 and 12 is in open mode（Transmission state）, wherein light transmittance T increases, such as Fig. 8（B）Shown in.

It is for preparation conduct is first in the prepared drive waveforms part Wpre of the prelocalization for opening drive waveforms part Wo Beginning step so as to by liquid crystal barrier 11 and 12 enter opening/closing operation state waveform portion, as the situation in Fig. 7.

As described above, in stereoscopic display unit 1, there is provided preparation drive waveforms part Wpre allows to be reduced to open mode Subsequent fringe time, and reduce liquid crystal barrier 11 and 12 response time.And, in stereoscopic display unit 1, preparation is driven The offer of dynamic waveform portion Wpre can reduce the differently- oriented directivity of liquid crystal molecule M（Azimuth）Riot, so as to allow liquid crystal display screen Barrier 11 and 12 into open mode moment when light transmittance be further improved.

In barrier means 10, multiple liquid crystal barriers 12 form multiple groups, and belong to identical group of multiple liquid crystal barriers 12 carry out opening and closing operation when stereo display is carried out with identical timing.Afterwards, the group of liquid crystal barrier 12 is described.

Fig. 9 shows one group of configuration example of liquid crystal barrier 12.In this example, liquid crystal barrier 12 forms two groups.Specifically Ground, the multiple liquid crystal barriers 12 being arranged side by side are alternatively formed group A and group B.Note, liquid crystal barrier 12A is suitably used as belonging to The collective noun of the liquid crystal barrier 12 of group A, and similarly liquid crystal barrier 12B is suitably used as belonging to the liquid crystal barrier of group B 12 collective noun.

In stereo display is carried out, the multiple liquid crystal barriers 12 for belonging to identical group beat opening/closing behaviour in identical timing execution Make.Specifically, multiple liquid crystal barriers 12 of group A are belonged to（Liquid crystal barrier 12A）With the multiple liquid crystal barriers 12 for belonging to group B（Liquid crystal Barrier 12B）Carry out opening/closing operation and be sequentially alternately at open mode to be based on（Transmission state）.At this moment, liquid crystal Barrier 11 is closed（Blocked state）.And, normally shown（Two dimension shows）In, liquid crystal barrier 11 and 12 （12A and 12B）All in open mode.

Figure 10 A to Figure 10 C to show and carrying out stereo display and normal display as the pattern figure using cross section structure（Two Dimension shows）In barrier portion 10 state.Figure 10 A show the state for carrying out stereo display, and Figure 10 B show carries out solid Another state for showing, and Figure 10 C show the state for carrying out normal display.In this example, by every in display unit 20 Four a piece of speed of pixel provide liquid crystal barrier 12A.In an identical manner, also press per four pixels one in display unit 20 The speed of piece provides liquid crystal barrier 12B.In the following description, pixel Pix is by three sub-pixels（RGB）Composition, although pixel is matched somebody with somebody Not limited to this are put, alternatively, for example, pixel Pix can be sub-pixel.And, the part that light is stopped in barrier means 10 is used Oblique line markings.

In stereo display is carried out, picture signal SA and SB are alternately supplied to show driver part 50, and are shown Part 20 carries out display operation based on the picture signal of the offer.In barrier means 10, liquid crystal barrier 12（Liquid crystal barrier 12A and 12B）Based on opening/closing operation is sequentially carried out, while liquid crystal barrier 11 keeps being closed（Stop shape State）.Specifically, when picture signal SA is provided, as shown in Figure 10 A, liquid crystal barrier 12A is in open mode, while liquid crystal display screen Barrier 12B is closed.In display unit 20, as described later, arrange adjacent to each other at position corresponding with liquid crystal barrier 12A Four pixels Pix of row carry out display corresponding with four fluoroscopy images that picture signal SA includes.As a result, as described later, Spectators for example with the fluoroscopy images that his left eye is different with the viewing of his right eye, perceive shown image for stereo-picture.Class As, when picture signal SB is provided, as shown in Figure 10 B, liquid crystal barrier 12B is in open mode, while at liquid crystal barrier 12A In closed mode.In display unit 20, as described later, arranged adjacent one another four at position corresponding with liquid crystal barrier 12B The corresponding display of individual pixel Pix is carried out with picture signal SB includes four fluoroscopy images.As a result, as described later, spectators' example As with his left eye fluoroscopy images different with the viewing of his right eye, perceived shown image for stereo-picture.Three-dimensional aobvious In showing unit 1, by alternately turning on liquid crystal barrier 12A and this modes of liquid crystal barrier 12B come display image, so that aobvious The resolution for showing unit is improved as described later.

Normally shown（Two dimension shows）In, in barrier means 10, liquid crystal barrier 11 and liquid crystal barrier 12（Liquid crystal Barrier 12A and 12B）Both remain open mode（Transmission state）, as illustrated in figure 10 c.As a result, it is allowed to spectators' viewing normal two Dimension image, because the two dimensional image is the image shown in display unit 20 based on picture signal SS.

Open specific examples of the drive waveforms part Wo corresponding to " first waveform part " in the disclosure.Beat opening/closing Specific examples of the drive waveforms part Woc corresponding to " the second waveform portion " in the disclosure.Preparation drive waveforms part Wpre The specific example of " the 3rd waveform portion " in corresponding to the disclosure.Liquid crystal barrier 12（12A and 12B）Corresponding in the disclosure The specific example of " first group of liquid crystal barrier ", and liquid crystal barrier 11 is corresponding to the concrete of " the second group of liquid crystal barrier " in the disclosure Example.Main line part 61 corresponds to the specific example of " the first main line part " in the disclosure, and main line part 62 is corresponding to this The specific example of " the second main line part " in open.Tool of the stub area 71 corresponding to " the first stub area " in the disclosure Body example, and stub area 72 corresponds to the specific example of " the second stub area " in the disclosure, and stub area 73 pairs The specific example of " the 3rd stub area " that should be in the disclosure, and stub area 74 is corresponding to " the 4th point in the disclosure The specific example in region ".

[operation and action]

Subsequently, there is provided the description to operation and the action of the stereoscopic display unit 1 according to the embodiment of the present disclosure.

（The general introduction of overall operation）

First, it is described with reference to Figure 1 the general introduction of the overall operation of stereoscopic display unit 1.Control unit 40 is believed based on image Number Sdisp supplies control signals to show each in driver part 50, backlight drive part 42 and barrier driver part 41 Individual, described image signal Sdisp is operating synchronously with one another for controlling above-mentioned part for outside offer.Backlight drive part 42 Backlight 30 is driven based on the backlight control signal CBL provided from control unit 40.Backlight 30 projects to plane launching light aobvious Show part 20.Show that driver part 50 drives display unit 20 based on picture signal S provided from control unit 40.Display part Part 20 is shown by modulation from the projected light of backlight 30.Barrier driver part 41 is based on the screen provided from control unit 40 Hinder control signal CBR and generate barrier drive signal DRV, the signal for being generated is supplied to into barrier means 10.Barrier means 10 In liquid crystal barrier 11 and 12（12A and 12B）Opening/closing operation is carried out based on barrier control signal CBR, transmitting or stop from The light that backlight 30 is projected and launched by display unit 20.

（The detailed operation of stereo display）

Then, the description of the detailed operation in providing to carrying out stereo display with reference to several accompanying drawings.

Figure 11 A and Figure 11 B show the operation example of display unit 20 and barrier means 10.Figure 11 A show offer figure As the situation of signal SA, and Figure 11 B show a case that to provide picture signal SB.

When picture signal SA is provided, as shown in Figure 11 A, each pixel Pix in display unit 20 shows and image letter Each corresponding Pixel Information P1 to P4 in four fluoroscopy images that number SA includes.At this moment, Pixel Information P1 to P4 quilts It is respectively displayed at pixel Pix of neighbouring arrangement of liquid crystal barrier 12A.When picture signal SA is provided, in barrier means 10, It is controlled such that liquid crystal barrier 12A is in open mode（Transmission state）, while liquid crystal barrier 12B is closed（Resistance Gear state）.Angle output of the light of each the pixel Pix transmitting from display unit 20 to be limited by liquid crystal barrier 12A.Example Such as, it is allowed to which spectators watch Pixel Information P2 and watch Pixel Information P3 by his right eye and see solid by his left eye Figure.

When picture signal SB is provided, as shown in Figure 11 B, each pixel Pix in display unit 20 shows and image letter Each corresponding Pixel Information P1 to P4 in four fluoroscopy images that number SB includes.At this moment, Pixel Information P1 to P4 quilts It is respectively displayed at pixel Pix of neighbouring arrangement of liquid crystal barrier 12B.When picture signal SB is provided, in barrier means 10, It is controlled such that liquid crystal barrier 12B is in open mode（Transmission state）, while liquid crystal barrier 12A is closed（Resistance Gear state）.Angle output of the light of each the pixel Pix transmitting from display unit 20 to be limited by liquid crystal barrier 12B.Example Such as, it is allowed to which spectators watch Pixel Information P2 and watch Pixel Information P3 by his right eye and see solid by his left eye Figure.

By this way, spectators see the difference picture in the middle of Pixel Information P1 to P4 using his left eye and his right eye Prime information, so as to the Pixel Information is felt as into stereo-picture.And, image is using the liquid crystal alternately opened based on the time-division What barrier 12A and liquid crystal barrier 12B showed, so that spectators watch the average image in the position display for offseting one from another.This So that stereoscopic display unit 1 realizes the resolution of twice situation for only providing liquid crystal barrier 12A.In other words, stereo display The resolution of unit 1 is only reduced to 1/3rd of two-dimentional display situation（=1/6x2）.

In stereoscopic display unit 1, in order to reduce the response time of liquid crystal barrier 11 and 12, barrier driver part 41 will be pre- Standby drive waveforms part Wpre is supplied to liquid crystal barrier 11 and 12 as barrier drive signal DRV.Specifically, enter in power initiation After row, or when display pattern is in stereo display and normal display（Two dimension shows）Between when switching, barrier driver part 41 Preparation drive waveforms part Wpre is supplied to into liquid crystal barrier 11 and 12 as barrier drive signal DRV.Then, show with reference to several Example to describe stereoscopic display unit 1 in display operation.

First, there is provided the description to the example of power initiation in stereoscopic display mode.

Figure 12 shows the timing diagram of the stereo display operation after power initiation.Figure 12's（A）Show display unit 20 operation,（B）The operation of backlight 30 is shown,（C）The waveform of barrier drive signal DRVA is shown, liquid crystal (D) is shown The light transmittance T of barrier 12A,（E）The waveform of barrier drive signal DRVB is shown, and（F）Show that liquid crystal barrier 12B's is saturating Light rate T.It should be noted that in this example, barrier drive signal DRVS is 0V, and liquid crystal barrier 11 is closed（Stop State）.

Figure 12's（A）Vertical axises show display unit 20 line sequential scan direction（Y-direction）Position.It is, Figure 12's（A）Illustrate the mode of operation of each position at a time in the Y direction of display unit 20.Figure 12's（A）In, " SA " represents that display unit 20 performs the state based on the display of picture signal SA, and " SB " represents that display unit 20 is performed and be based on The state of the display of picture signal SB.

After power initiation, during the time period of t0 to t1, the preparation stereo display of stereoscopic display unit 1 operation, and And after timing t 1, backlight 30, display unit 20 and barrier means 10 are operated synchronously with one another, so as to start stereo display behaviour Make.Below, the details is described.

First, during the time period of t0 to t1, barrier driver part 41 is by preparation drive waveforms part Wpre as screen Barrier drive signal DRVA is supplied to liquid crystal barrier 12A（Figure 12's（C））, while by preparation drive waveforms part Wpre as barrier Drive signal DRVB is supplied to liquid crystal barrier 12B（Figure 12's（E））.As a result, in liquid crystal barrier 12（12A and 12B）Liquid crystal layer In 19, the longitudinal direction of liquid crystal molecule M is aligned to be inclined with the direction perpendicular to substrate surface.At this moment, the printing opacity of liquid crystal barrier 12 Rate T is maintained at sufficiently low state（Figure 12's（D）With（F））.

Subsequently, after timing t 1, start normal stereo and show operation.In the stereo display operation, by scanning The line sequential scan performed in cycle T 1, based on the display sequentially carried out on liquid crystal barrier 12A（Based on the aobvious of picture signal SA Show）With the display on liquid crystal barrier 12B（Display based on picture signal SB）.For each display cycle T0 repeats these displays Operation.Herein, display cycle T0 is allowed to be set as such as about 16.7 [msec] (a cycles of 60 [Hz]).In this feelings Under condition, scan period T1 is about 4.2 [msec] (a quarter of display cycle T0).

First, during the time period of t1 to t2, in display unit 20, based on from the drive for showing the offer of driver part 50 Dynamic signal performs line sequential scan from highest part to lowermost portion, to perform based on the display of picture signal SA（Figure 12's （A））.Voltage Vo is applied to liquid crystal barrier 12A by barrier driver part 41（Figure 12's（C））. As a result, in barrier means 10, the light transmittance T of liquid crystal barrier 12A rises（Figure 12's（D））.At this moment, liquid crystal barrier 12A's In liquid crystal layer 19, the Vertical Square relative to substrate surface is oriented as due to the longitudinal direction of liquid crystal molecule M in the initial step To inclination, therefore liquid crystal molecule M response is rapidly oblique in the applying of voltage Vo, and light transmittance T rapidly rises.

Subsequently, during the time period of t2 to t3, in display unit 20, based on from the drive for showing the offer of driver part 50 Dynamic signal performs again line sequential scan from highest part to lowermost portion, to perform based on the display of picture signal SA （Figure 12's（A））.In other words, display unit 20 is repeated twice and shows based on the identical two field picture of picture signal SA.In barrier In part 10, liquid crystal barrier 12A is in open mode, and its light transmittance T fully increases（Figure 12's（D））.Then, backlight 30 exists This time period of t2 to t3 opens（ON）（Figure 12's（B））.This causes during the time period of t2 to t3 spectators in display part Display of the viewing based on picture signal SA on part 20.It is additionally, since light transmittance T in liquid crystal barrier 12B sufficiently low, therefore based on figure As the image that signal SA and SB show unlikely is mixed with each other, this makes it possible to reduce the image caused due to so-called crosstalk The deterioration of quality.

Then, during the time period of t3 to t4, in display unit 20, based on from the drive for showing the offer of driver part 50 Dynamic signal performs line sequential scan from highest part to lowermost portion, to perform based on the display of picture signal SB（Figure 12's （B））.0V is applied to liquid crystal barrier 12A by barrier driver part 41（Figure 12's（C））, while Liquid crystal barrier 12B is applied to using voltage Vo as barrier drive signal DRVB（Figure 12's（E））.As a result, in barrier means 10, The light transmittance T of liquid crystal barrier 12A is reduced（Figure 12's（D））, and the light transmittance T of liquid crystal barrier 12B increases（Figure 12's（F））.This When, in the liquid crystal layer 19 of liquid crystal barrier 12B, because the longitudinal direction of liquid crystal molecule M in the initial step is oriented as relatively Incline in the direction vertical with substrate surface, therefore liquid crystal molecule M response is rapidly oblique in the applying of voltage Vo, and thoroughly Light rate T rapidly rises.Backlight 30 is closed during the time period of t3 to t4（Figure 12's（B））.Therefore, spectators can't see from base In picture signal SA be shown to the instantaneous variation based on the display of picture signal SB and liquid crystal barrier 12 in light transmittance T Instantaneous variation, this make it possible to reduce picture quality deterioration.

During the time period of t4 to t5, in display unit 20, based on from the driving letter for showing that driver part 50 is provided Number line sequential scan is performed again to lowermost portion from highest part, to perform based on the display of picture signal SB（Figure 12 's（A））.In other words, display unit 20 is repeated twice and shows based on the identical two field picture of picture signal SB.In barrier means 10 In, liquid crystal barrier 12A is closed, and its light transmittance T fully reduces（Figure 12's（D））, while liquid crystal barrier 12B is in Open mode, its light transmittance T fully increases（Figure 12's（F））.Then, backlight 30 is opened during the time period of t4 to t5 （ON）（Figure 12's（B））.This causes spectators, and viewing is based on picture signal in display unit 20 during the time period of t4 to t5 The display of SB.It is additionally, since that light transmittance T is substantially low in liquid crystal barrier 12A, therefore the figure shown based on picture signal SA and SB As being unlikely mixed with each other, this makes it possible to the deterioration of the picture quality for reducing causing due to so-called crosstalk.

Then, during the time period of t5 to t6, in display unit 20, hold as during the time period of t1 to t2 Display of the row based on picture signal SA（Figure 12's（A））.Barrier driver part 41 is by voltage（-Vo）As barrier drive signal DRVA is applied to liquid crystal barrier 12A, while being applied to liquid crystal barrier 12B using 0V as barrier drive signal DRVB（Figure 12's（C） With（E））.As a result, in barrier means 10, the light transmittance T of liquid crystal barrier 12A increases, while the light transmittance T of liquid crystal barrier 12B Reduce（Figure 12's（D）With（F））.At this moment, in the liquid crystal layer 19 of liquid crystal barrier 12A, in timing t 5, due to liquid crystal molecule M's Longitudinal direction does not completely return to the direction vertical with substrate surface, and is towards being slightly tilted a direction with vertical direction （A certain azimuth direction）Orientation, therefore liquid crystal molecule M response is in voltage（-Vo）Applying and from the azimuth direction rapidly It is oblique, and light transmittance T rapidly rises.Backlight 30 is closed during the time period of t5 to the t6（Figure 12's（B））.

During the time period of t6 to t7, in display unit 20, as during the time period of t2 to t3 again Perform based on the display of picture signal SA（Figure 12's（A））.In barrier means 10, liquid crystal barrier 12A is in open mode, its Light transmittance T fully increases, while liquid crystal barrier 12B is closed, its light transmittance T fully reduces（Figure 12's（D）With （F）.Then, backlight 30 is opened during the time period of t6 to the t7（ON）（Figure 12's（B））.

Then, during the time period of t7 to t8, in display unit 20, hold as during the time period of t3 to t4 Display of the row based on picture signal SB（Figure 12's（A））.Barrier driver part 41 applies 0V as barrier drive signal DRVA To liquid crystal barrier 12A, while being applied to liquid crystal barrier 12B using voltage (- Vo) as barrier drive signal DRVB（Figure 12's（C） With（E））.As a result, in barrier means 10, the light transmittance T of liquid crystal barrier 12A reduces, while the light transmittance T of liquid crystal barrier 12B Increase（Figure 12's（D）With（F））.At this moment, in the liquid crystal layer 19 of liquid crystal barrier 12B, in timing t 7, due to liquid crystal molecule M's Longitudinal direction does not completely return to the vertical direction of substrate surface, and is towards being slightly tilted a direction with vertical direction （A certain azimuth direction）Orientation, therefore liquid crystal molecule M response is in voltage（-Vo）Applying and from the azimuth direction rapidly It is oblique, and light transmittance T rapidly rises.Backlight 30 is closed during the time period of t7 to the t8（Figure 12's（B））.

During the time period of t8 to t9, in display unit 20, as during the time period of t4 to t5 again Perform based on the display of picture signal SB（Figure 12's（A））.In barrier means 10, liquid crystal barrier 12A is closed, its Light transmittance T fully reduces, while liquid crystal barrier 12B is in open mode, its light transmittance T fully increases（Figure 12's（D）With （F））.Then, backlight 30 is opened during the time period of t8 to the t9（ON）（Figure 12's（B））.

Subsequently, by repeating aforesaid operations during the time period of t1 to t9, stereoscopic display unit 1 alternately repeats to be based on The display of picture signal SA（Display on liquid crystal barrier 12A）With the display based on picture signal SB（It is aobvious on liquid crystal barrier 12B Show）.

Then, there is provided to normal display（Two dimension shows）The description of the example of power initiation in pattern.

Figure 13 shows the timing diagram of the normal display operation after power initiation, Figure 13's（A）Show display unit 20 operation,（B）The operation of backlight 30 is shown,（C）The waveform of barrier drive signal DRVS is shown, liquid crystal (D) is shown The light transmittance T of barrier 11,（E）The waveform of barrier drive signal DRVA is shown,（F）Show the light transmittance of liquid crystal barrier 12A T,（G）The waveform of barrier drive signal DRVB is shown, and（H）Show the light transmittance T of liquid crystal barrier 12B.

After power initiation, during the time period of t20 to t21, stereoscopic display unit 1 prepares normal display and operates, And after timing t 21, display unit 20 and barrier means 10 are operated with being mutually in step, operate so as to start normal display. Hereinafter, the details is described.

First, during the time period of t20 to t21, barrier driver part 41 will preparation drive waveforms part Wpre conducts Barrier drive signal DRV is supplied to liquid crystal barrier 11 and 12.Specifically, barrier driver part 41 will preparation drive waveforms part Wpre is supplied to liquid crystal barrier 11 as barrier drive signal DRVS（Figure 13's（C））, and will preparation drive waveforms part Wpre is supplied to liquid crystal barrier 12A as barrier drive signal DRVA（Figure 13's（E））, while will preparation drive waveforms part Wpre is supplied to liquid crystal barrier 12B as barrier drive signal DRVB（Figure 13's（G））.As a result, in liquid crystal barrier 11 and 12 （12A and 12B）Liquid crystal layer 19 in, the longitudinal direction of liquid crystal molecule M is aligned to inclined vertically with substrate surface.At this moment, The light transmittance T of liquid crystal barrier 11 and 12 is maintained at sufficiently low state（Figure 13's（D）、（F）With（G））.

Subsequently, after timing t 21, start normal display and operate.Specifically, barrier driver part 41 will be opened and drive ripple Shape part Wo is supplied to liquid crystal barrier 11 and 12 as barrier drive signal DRV, so that liquid crystal barrier 11 and 12 is entered beating Open state, and spectators are via the image shown in these viewing display uniies 20 of liquid crystal barrier 11 and 12.

First, during the time period of t21 to t22, in display unit 20, based on what is provided from display driver part 50 Drive signal performs line sequential scan from highest part to lowermost portion, to perform based on the display of picture signal SS（Figure 13 's（A））.Voltage Vo is applied to liquid crystal barrier 11 by barrier driver part 41, and by voltage Vo is applied to liquid crystal barrier 12A as barrier drive signal DRVA, while applying voltage Vo as barrier drive signal DRVB To liquid crystal barrier 12B（(C), (E) and (G) of Figure 13）.As a result, in barrier means 10, liquid crystal barrier 11 and 12（12A and 12B）Light transmittance T rise（Figure 13's（D）、（F）With（H））.At this moment, in the liquid crystal layer 19 of liquid crystal barrier 11 and 12, due to In the initial step the longitudinal direction of liquid crystal molecule M is oriented as being inclined relative to the direction vertical with substrate surface, therefore liquid Brilliant molecule M response is rapidly oblique in the applying of voltage Vo, and light transmittance T rapidly rises.Then, backlight 30 is in timing 21 open（ON）（Figure 13's（B））.

Subsequently, during the time period of t22 to t23, in display unit 20, perform again based on picture signal SS Show（Figure 13's（A））.In other words, stereoscopic display unit 1 is repeated twice the identical two field picture of display.In barrier means 10, Liquid crystal barrier 11 and 12 enters open mode, and its light transmittance T fully increases（Figure 13's（D）、（F）With（H））.This causes spectators Display of the viewing based on picture signal SS in display unit 20.

Then, during the time period of t23 to t24, in display unit 20, perform based on the subsequent frame of picture signal SS The display of image（Figure 13's（A））.Barrier driver part 41 is by voltage（-Vo）Liquid crystal is applied to as barrier drive signal DRVS Barrier 11, and by voltage（-Vo）Liquid crystal barrier 12A is applied to as barrier drive signal DRVA, while by voltage（-Vo）Make Liquid crystal barrier 12B is applied to for barrier drive signal DRVB（Figure 13's（C）、（E）With（G））.In barrier means 10, liquid crystal display screen Barrier 11 and 12（12A and 12B）Light transmittance（T）Keep higher.Then, during the time period of t24 to t25, in display unit In 20, perform again based on the display of picture signal SS（Figure 13's（A））.By this way, liquid crystal barrier 11 and 12 is saturating Light rate T keeps higher, and this causes spectators to watch in display unit 20 based on the display of picture signal SS.

Subsequently, by repeating aforesaid operations during the time period of t21 to t25, stereoscopic display unit 1 is performed and is based on image The display of signal SS.

Then, there is provided normal display is switched to from stereoscopic display mode to display pattern（Two dimension shows）The situation of pattern is shown The description of example.

Figure 14 shows the sequential chart of the display operation in switching display pattern.Figure 14's（A）Show display unit 20 Operation, (B) show the operation of backlight 30,（C）The waveform of barrier drive signal DRVS is shown,（D）Show liquid crystal display screen The light transmittance T of barrier 11, (E) shows the waveform of barrier drive signal DRVA,（F）The light transmittance T of liquid crystal barrier 12A is shown, （G）The waveform of barrier drive signal DRVB is shown, and（H）Show the light transmittance T of liquid crystal barrier 12B.

For example, when basis is switched to normal display from the instruction display pattern of user from stereoscopic display mode（Two dimension is aobvious Show）During pattern, the preparation during the time period of t31 to t32 of stereoscopic display unit 1 is normal to be shown, is subsequently opened after timing t 32 Begin normally to show（Two dimension shows）.Afterwards, the details is described.

First, in sequential t31, barrier driver part 41 is by preparation drive waveforms part Wpre as barrier drive signal DRVS is supplied to liquid crystal barrier 11（Figure 14's（C））.As a result, in the liquid crystal layer 19 of liquid crystal barrier 11, the longitudinal direction of liquid crystal molecule M Direction is oriented as being inclined relative to the direction perpendicular to substrate surface.At this moment, the light transmittance T of liquid crystal barrier 11 is maintained at enough Low state（Figure 14's（D））.

Then, in timing t 32, display pattern is switched to normal display mould by stereoscopic display unit 1 from stereoscopic display mode Formula.Specifically, in display unit 20, show and be switched to based on picture signal SS from the display based on picture signal SA and SB Display（Figure 14's（A））.Then, voltage Vo is supplied to liquid crystal display screen by barrier driver part 41 Barrier 11, using voltage Vo as barrier drive signal DRVA liquid crystal barrier 12A is supplied to, while voltage Vo is driven as barrier believing Number DRVB is supplied to liquid crystal barrier 12B（Figure 14's（C）、（E）With（G））.As a result, in barrier means 10, the He of liquid crystal barrier 11 12（12A and 12B）Light transmittance T rise（Figure 14's（D）、（F）With（H））.At this moment, in the liquid crystal layer 19 of liquid crystal barrier 11, Because the longitudinal direction of liquid crystal molecule M in the initial step is oriented as relative to the inclined vertically of substrate surface, therefore Liquid crystal molecule M response is rapidly oblique in the applying of voltage Vo, and light transmittance T rapidly rises.

As described above, in stereoscopic display unit 1, liquid crystal barrier 11 and 12 enter opening/closing operation state or Before open mode, preparation drive waveforms part Wpre is applied to into liquid crystal barrier 11 and 12 as barrier drive signal DRV, from And the response time of liquid crystal barrier 11 and 12 can be reduced.

（Comparative examples）

Then, compared with comparative examples, there is provided the description to the action according to the embodiment of the present disclosure.According to this comparative examples Stereoscopic display unit 1R equipped with barrier driver part 41R, its liquid crystal barrier 11 and 12 enter opening/closing operation state Or before open mode, preparation drive waveforms part Wpre is not applied to into liquid crystal barrier 11 as barrier drive signal DRV With 12.Those configurations of other configurations similar to the embodiment of the disclosure（Fig. 1）.

Figure 15 shows the sequential chart of stereo display operation after the power initiation of stereoscopic display unit 1R.Figure 15's（A） The operation of display unit 20 is shown,（B）The operation of backlight 30 is shown,（C）The waveform of barrier drive signal DRVA is shown, （D）The light transmittance T of liquid crystal barrier 12A is shown,（E）The waveform of barrier drive signal DRVB is shown, and（F）Show liquid The light transmittance T of brilliant barrier 12B.It is, timing diagrams of the Figure 15 corresponding to the stereoscopic display unit 1 according to the embodiment of the present disclosure （Figure 12）.

In stereoscopic display unit 1R according to the comparative examples, different from stereoscopic display unit 1（Figure 12）Situation, Preparation drive waveforms part Wpre is not applied to liquid crystal barrier 12 by barrier driver part 41R after power initiation, but is applied Beat opening/closing drive waveforms part Woc.At this moment, due to voltage that each the liquid crystal molecule M response in liquid crystal barrier 12 is applied And it is not allowed to rapidly oblique, therefore the light transmittance T of liquid crystal barrier 12 is not allowed to rapidly rise.And, each liquid crystal Molecule M attempts the voltage to being applied and makes a response, and its alignment direction is in bedlamism, and this makes it difficult to carry light transmittance T It is high to the gratifying light transmittance Topen in open mode.

On the other hand, in the stereoscopic display unit 1 according to the embodiment of the present disclosure, barrier driver part 41 is driving preparation Dynamic waveform portion Wpre is applied to the after-applied opening/closing drive waveforms part Woc of liquid crystal barrier 12.As a result, in liquid crystal display screen In the liquid crystal layer 19 of barrier 12, in matching alignment direction（Azimuth）Afterwards, liquid crystal molecule M response in as beat opening/closing drive The voltage that waveform portion Woc applies is allowed to rapidly oblique, and this causes liquid crystal barrier 12 to make instead with shorter response time Should, and cause to realize higher light transmittance T in the on-state.

It should be noted that in this example, by providing description as an example using the power initiation in stereoscopic display mode, Although this description is equally applicable to normal display（Two dimension shows）In or the switching of display pattern in power initiation, and In stereoscopic display unit 1 in accordance with an embodiment of the present disclosure, the response time of liquid crystal barrier 11 and 12 can be reduced.

[effect]

As described above, in accordance with an embodiment of the present disclosure, there is provided preparation drive waveforms part, this causes to work as and beats with after-applied Open drive waveforms part or the response time of liquid crystal barrier can be reduced when beating opening/closing drive waveforms part.And, the preparation Drive waveforms part reduces the riot of the alignment direction of liquid crystal molecule so that liquid crystal barrier enter open mode when this The light transmittance at moment is improved.

And, in accordance with an embodiment of the present disclosure, liquid crystal molecules tilt is made in substrate by applying preparation drive waveforms part The vertical direction on surface, compared with being provided in advance in the case of pre-tilt using PSA etc., this causes manufacturing process simpler.

And, in accordance with an embodiment of the present disclosure, pre-tilt is not provided, so that contrast is improved.In other words, when carrying During for pre-tilt, even if the electric potential difference of the both sides of liquid crystal layer 19 is 0 volt, because the longitudinal direction of liquid crystal molecule is aligned relative to substrate table The vertical direction in face moves some angles, and liquid crystal barrier launching light somewhat through being possible, causes to be subject in this case Destruction.On the other hand, in accordance with an embodiment of the present disclosure, pre-tilt is not provided, so that contrast is improved.

In addition, in accordance with an embodiment of the present disclosure, there is provided prepare drive waveforms part and do not provide any pre-tilt so that energy Enough reduce the response time of liquid crystal molecule.In other words, typically, when pre-tilt is provided, by what is alignd towards pre-dumping tilted direction Power is applied to liquid crystal molecule, may increase the response time to institute's applied voltage.On the other hand, in accordance with an embodiment of the present disclosure, Pre-tilt is not provided, and the alignment direction of liquid crystal molecule is matched by applying preparation drive waveforms part such that it is able to reduce The response time of liquid crystal molecule.

[modified example 1]

In accordance with an embodiment of the present disclosure, preparation drive waveforms part Wpre is the DC waveforms with pre- voltage Vpre, although Wpre not limited to this, and in addition to the waveform shown in Figure 16 A described in above-described embodiment of the disclosure, may be, for example, Any waveform shown in Figure 16 B to 16G.For example, the prepared drive waveforms part Wpre in Figure 16 A may be by integrally anti- Turn, as illustrated in figure 16b, or Wpre can be gradually risen for several times from 0V（In this example for twice）Impulse waveform, As shown in fig. 16 c, a part of the prepared drive waveforms part Wpre or in Figure 16 C（It is in this example rear portion） Can be inverted as shown in figure 16d.And, for example, as shown in Figure 16 E and 16F, Wpre can be between voltage Vo and 0V The square waveform of transformation.In this case, using the dutycycle of the square waveform as shown in Figure 16 E and 16F, it is allowed to set up Actually it is applied to the active voltage Veff of liquid crystal layer 19.In addition, as shown in Figure 16 G, the cycle of square waveform can be on way Middle change.

And, for example, the average voltage of preparation drive waveforms part Wpre can be equal to 0V（Common electric voltage Vcom）, such as scheme Shown in 17A to 17C.Specifically, for example, the half of the prepared drive waveforms part Wpre in Figure 16 A（It is in this example latter Half）Can be inverted as shown in figure 17 a, or each step of the prepared drive waveforms part Wpre in Figure 16 C can be such as figure On the way inverted shown in 17B.And, for example, the half of the prepared drive waveforms part Wpre in Figure 16 E（In the example In be later half）Can be inverted as shown in fig. 17 c.By this way, the part quilt of preparation drive waveforms part Wpre Reversion, and average voltage becomes equal to 0V（Common electric voltage Vcom）, it is enable to reduce the so-called burning of liquid crystal layer 19 Impact.

[modified example 2]

And, according to above-described embodiment of the disclosure, preparation drive waveforms part Wpre is same waveform pattern, although Wpre not limited to this, and for example, whenever drive waveforms part Wpre is prepared as shown in Figure 18 liquid crystal barrier 11 is applied to May be inverted with its polarity when 12.In this example, display pattern is in stereoscopic display mode and normal display（Two dimension shows） Switch for several times between pattern.When display pattern is switched to normal displaying mode from stereoscopic display mode, barrier driver part 41 Preparation drive waveforms part Wpre is supplied to into liquid crystal barrier 11 as barrier drive signal DRVS, as shown in Figure 14.At this moment, Preparation drive waveforms part Wpre inverts its polarity when display pattern is switched to normal displaying mode from stereoscopic display mode. In other words, when just pre- voltage Vpre is applied to liquid crystal barrier 11 as preparation drive waveforms part Wpre, when applying next time During preparation drive waveforms part Wpre, applied to bear pre- voltage Vpre according to the barrier driver part of the modified example.This allows to subtract The impact of the so-called burning of little liquid crystal layer 19.It should be noted that reversed polarity when there is provided herein wherein each switching display pattern The description of example, but example not limited to this, and alternatively, for example, often when the power source is activated can be with reversed polarity.

[modified example 3]

And, according to above-described embodiment of the disclosure etc., the identical two field picture of display is repeated twice, although display packing is not limited In this, but conversely, for example, picture black and two field picture can be alternately shown as shown in Figure 19.Herein, in (A) of Figure 19 " B " refer to show picture black state.In stereoscopic display unit 1B according to the modified example, display unit 20B is based on Picture signal SA or SB alternately show picture black B and two field picture.Specifically, display unit 20B repeatedly shown with picture black, Shown based on the display of picture signal SA, picture black and carried out based on the order of the display of picture signal SB.Then, backlight 30 exists Period corresponding with the time period when display unit 20B shows two field picture based on picture signal SA or SB connects.It should be noted that this Place using stereo display operation as an example by providing description, although in normal display operation, can similarly hand over For display picture black and two field picture.

[modified example 4]

And, according to above-described embodiment of the disclosure etc., in three-dimensional display, barrier driver part 41 or by voltage Vo or by voltage（-Vo）It is supplied to liquid crystal barrier 12（12A and 12B）, so that liquid crystal barrier 12 enters open mode.So And, not limited to this of barrier driver part 41, and for example, can pass through to provide as shown in Figure 20 voltage Vo with（-Vo） Between change pulse cause liquid crystal barrier 12 to enter open mode.

[modified example 5]

And, according to above-described embodiment of the disclosure etc., in three-dimensional display, liquid crystal barrier 12 is performed based on the time-division and beaten Opening/closing is operated.However, the operation not limited to this, and alternatively, for example, liquid crystal barrier 12 can be not based on the time-division Opening/closing operation is performed, and can be to be always maintained at open mode.Hereinafter, the details is described.

Figure 21 shows the operation example of the three-dimensional display in stereoscopic display unit 1C according to the modified example. In barrier means 10C of stereoscopic display unit 1C, three liquid crystal barriers 11 and a liquid crystal display screen are alternately arranged in this example Barrier 12.When three-dimensional display is realized, liquid crystal barrier 12 enters open mode, and liquid crystal barrier 11 enters closed mode.For Picture signal ST of three-dimensional display is provided to display driver part 50 from control unit 40.Then, display unit 20 is based on Picture signal ST with display pixel information P1 to P4 at the corresponding position of liquid crystal barrier 12.

Figure 22 shows the timing diagram of the stereo display operation after the power initiation for stereoscopic display unit 1C.Figure 22 's（A）The operation of the display unit 20 according to the modified example is shown,（B）The operation of backlight 30 is shown,（C）Show use In the waveform of the barrier drive signal DRVT for driving liquid crystal barrier 12, and（D）Show the light transmittance T of liquid crystal barrier 12.Will Note, in this example, barrier drive signal DRVS is 0V, and liquid crystal barrier 11 enters closed mode（Blocked state）.At this In example, during the time period of t60 to t61, barrier driver part 41 drives preparation drive waveforms part Wpre as barrier Dynamic signal DRVT is supplied to liquid crystal barrier 12.Then, after timing t 61, barrier driver part 41 will open drive waveforms portion Wo is divided to be supplied to liquid crystal barrier 12 as barrier drive signal DRVT.

[modified example 6]

And, according to above-described embodiment of the disclosure etc., liquid crystal barrier 11 and 12 be configured to vertical direction Y shape into The side of predetermined angle theta upwardly extends.However, forming method not limited to this, and alternatively, for example, liquid crystal barrier 11 and 12 Can be configured to extend in vertical direction Y.In this case, transparency electrode 110D and 120D be configured to such as Figure 23 Extend in bearing of trend identical vertical direction Y of shown liquid crystal barrier 11 and 12.

[modified example 7]

And, according to above-described embodiment of the disclosure etc., with this suitable of backlight 30, display unit 20 and barrier means 10 Sequence is arranged, although the structure not limited to this.Alternatively, as shown in Figure 24, backlight 30, barrier means can be applied 10 and display unit 20 order structure.

Figure 25 A and Figure 25 B show the operation example of the display unit 20 according to the modified example and barrier means 10.Figure 25A shows a case that to provide picture signal SA, and Figure 25 B show a case that to provide picture signal SB.In the modified example In, initially enter barrier means 10 from the projected light of backlight 30.Afterwards, send in the middle of the light and pass through liquid crystal barrier 12A and 12B Light modulated in display unit 20, while export four fluoroscopy images.

[modified example 8]

And, according to above-described embodiment of the disclosure etc., backlight 30 performs plane transmitting, although luminescent method is not limited to This.Alternatively, it is, for example possible to use the backlight with many sub- emission elements divided in vertical direction Y, and these Each in sub- emission element synchronously can be lighted with the scanning of the display in display unit 20 based on the time-division.

This technology is described by quoting embodiment and modified example, although this technology is not limited to those embodiments etc., and There are various modifications.

For example, according to above-described embodiment of the disclosure etc., during the power initiation in stereoscopic display mode, in such as Figure 12 In the same time, barrier driver part 41 starts for preparation drive waveforms part Wpre to be supplied to liquid crystal barrier 12A phase Deng shown in Both with 12B.However, operation timing not limited to this, and for example, can alternately move regulation and start timing.Similarly, exist It is normal to show（Two dimension shows）During power initiation in pattern, in the phase as shown in Figure 13 etc. in the same time, barrier drive division Part 41 starts for preparation drive waveforms part Wpre to be supplied to liquid crystal barrier 11 and 12（12A and 12B）.However, operation timing is not It is limited to this, and alternatively, for example, regulation can be moved and start timing.

According to above-mentioned example embodiment and disclosed modification, following configuration can be at least realized.

(1) a kind of display unit, including：

Display unit；

Barrier means, including multiple liquid crystal barriers of switching open mode and closed mode；With

Barrier driver part, using one or more barrier drive signals the barrier means are driven,

Each in wherein described barrier drive signal is the signal for including following part：

The first waveform portion that a series of waveforms of open mode are constituted is maintained at by liquid crystal barrier is allowed during multiple frames Point, or the second corrugated part that a series of waveforms switched between open mode and closed mode by permission liquid crystal barrier are constituted Point, and

3rd waveform portion, it is located just at before first waveform part or the second waveform portion, and with than first The maximum of the pulse height value of waveform portion or the second waveform portion wants little average pulse height value.

(2) display unit as described in (1), including：

Multiple display patterns, including 3-D view display pattern and two dimensional image display pattern,

Wherein described barrier means include the multiple liquid crystal barriers in multiple liquid crystal barriers and second group in first group, and

First waveform part is supplied to the barrier driver part liquid in second group in two dimensional image display pattern Brilliant barrier, and the liquid crystal barrier being supplied to DC voltage in 3-D view display pattern in second group.

(3) display unit as described in (2), wherein the 3rd waveform portion just shows mould in pattern from 3-D view Formula is switched to before two dimensional image display pattern the liquid crystal barrier being provided in second group.

(4) display unit as described in (2) or (3), wherein the barrier driver part is in two dimensional image display pattern Starting time the 3rd waveform portion is supplied to liquid crystal barrier in second group.

(5) display unit as described in any one in (2) to (4), wherein the liquid crystal barrier in first group be divided into it is many Individual barrier subgroup, and

First waveform part is supplied to the barrier driver part liquid in first group in two dimensional image display pattern Brilliant barrier, and by each other the second waveform portion of phase shift is supplied to first in the middle of barrier subgroup in 3-D view display pattern Liquid crystal barrier in group.

(6) display unit as described in any one in (2) to (4), wherein the barrier driver part is aobvious in two dimensional image Show in pattern and 3-D view display pattern the liquid crystal barrier being supplied to first waveform part in first group.

(7) display unit as described in any one in (2) to (6), wherein the barrier driver part on startup between will 3rd waveform portion is supplied to the liquid crystal barrier in first group.

(8) display unit as described in any one in (2) to (7), wherein the 3rd waveform portion is that have to be different from The DC waveform of the voltage of DC voltage.

(9) display unit as described in any one in (2) to (7), wherein the 3rd waveform portion is impulse waveform.

(10) display unit as described in (9), wherein the 3rd waveform portion has is equal to first waveform part or the The maximum impulse height value of the maximum of the pulse height value of two waveform portions.

(11) display unit as described in any one in (2) to (7), wherein the 3rd waveform portion is alternating polarities ripple Shape.

(12) display unit as described in (11), wherein the 3rd waveform portion has the positive electricity equal to the negative voltage time The pressure time.

(13) display unit as described in any one in (2) to (7), wherein the barrier driver part is by the 3rd waveform Part applies the inverted version of the 3rd waveform portion for previously having applied when being applied to liquid crystal barrier.

(14) display unit as described in (1), wherein each in the liquid crystal barrier extends in a first direction simultaneously And the multiple sub-electrodes being arranged side by side including liquid crystal layer and in a first direction,

Each in the plurality of sub-electrode includes

The the first main line part for extending in a first direction,

In the upwardly extending second main line part in side with the first main line partial intersection, and

In the upwardly extending multiple components in side away from the first main line part and the second main line part,

With the plurality of component in the first stub area, the second stub area, the 3rd stub area and the 4th branch The first main line is disposed in equidirectional extension, first stub area and the second stub area in each in region On partial side, and centre is partly interposed in the second main line, the 3rd stub area is placed relative to the first stub area In the opposite side of the first main line part, and the 4th stub area is placed on the first main line part relative to the second stub area Opposite side.

(15) display unit as described in (14), also includes：

First polariser, be provided on the side of liquid crystal layer and in the display surface of display unit with vertical direction and One direction transmission-polarizing light of horizontal direction；With

Second polariser, be provided on the opposite side relative to the liquid crystal layer of the first polariser and with vertical direction and Another direction transmission-polarizing light of horizontal direction,

The component in component and the 4th stub area in wherein the first stub area is with relative to level side Extend to the direction for inclining about 45 degree counterclockwise, and

The component in component and the 3rd stub area in second stub area is with suitable relative to horizontal direction Hour hands incline about 45 degree of direction and extend.

(16) display unit as described in (14), wherein the barrier means include public electrode, the public electrode is common It is formed on the region corresponding to the multiple liquid crystal barriers on the opposite side relative to the liquid crystal layer of sub-electrode.

(17) display unit as described in (1), also includes：

Backlight, wherein

The display unit is liquid crystal display component, and

The liquid crystal display component is disposed between backlight and barrier means.

(18) display unit as described in (1), also includes：

Backlight, wherein

The display unit is liquid crystal display component, and

The barrier means are disposed between backlight and liquid crystal display component.

(19) a kind of barrier device, including：

Barrier driver part, using one or more barrier drive signals barrier means are driven,

(20) a kind of method for driving display unit, methods described includes：

One or more barrier drive signals are supplied to into multiple liquid crystal barriers of switching open mode and closed mode；With

The display image in display unit, wherein

Each in the barrier drive signal includes

The disclosure includes the Japanese Priority Patent application JP 2011- submitted to Japan Office with May 20th, 2011 Theme identical theme disclosed in 113894, its entire content is incorporated by reference in this.

It will be understood to those of skill in the art that according to the design within the category of appended claims or its equivalent Require and other factors, it may occur however that various modifications, combination, sub-portfolio and replacement.

Claims

1. a kind of display unit, including：

Display unit；

The first waveform part that a series of waveforms of open mode are constituted is maintained at by the permission liquid crystal barrier during multiple frames, or The second waveform portion that person is made up of a series of waveforms for allowing liquid crystal barrier to switch between open mode and closed mode, and

3rd waveform portion, it is located just at before first waveform part or the second waveform portion, and with than first waveform The maximum of the pulse height value of part or the second waveform portion wants little average pulse height value.

2. display unit as claimed in claim 1, including：

First waveform part is supplied to the barrier driver part liquid crystal display screen in second group in two dimensional image display pattern Barrier, and the liquid crystal barrier being supplied to DC voltage in 3-D view display pattern in second group.

3. display unit as claimed in claim 2, wherein the 3rd waveform portion just shows in pattern from 3-D view Pattern switching is provided to the liquid crystal barrier in second group to before two dimensional image display pattern.

4. display unit as claimed in claim 2, wherein barrier driver part is being opened described in two dimensional image display pattern The dynamic time, the 3rd waveform portion was supplied to the liquid crystal barrier in second group.

5. display unit as claimed in claim 2, wherein the liquid crystal barrier in first group is divided into multiple barrier subgroups, and

First waveform part is supplied to the barrier driver part liquid crystal display screen in first group in two dimensional image display pattern Barrier, and by each other the second waveform portion of phase shift is supplied in first group in the middle of barrier subgroup in 3-D view display pattern Liquid crystal barrier.

6. display unit as claimed in claim 2, wherein the barrier driver part is in two dimensional image display pattern and three-dimensional First waveform part is supplied to into the liquid crystal barrier in first group in image display mode.

7. display unit as claimed in claim 5, wherein the barrier driver part on startup between by the 3rd waveform portion The liquid crystal barrier being supplied in first group.

8. display unit as claimed in claim 2, wherein the 3rd waveform portion is DC waveform, the electricity of the DC waveform Pressure is different from the DC voltage of the liquid crystal barrier being supplied in second group.

9. display unit as claimed in claim 2, wherein the 3rd waveform portion is impulse waveform.

10. display unit as claimed in claim 9, wherein the 3rd waveform portion has is equal to first waveform part or the The maximum impulse height value of the maximum of the pulse height value of two waveform portions.

11. display units as claimed in claim 2, wherein the 3rd waveform portion is alternating polarities waveform.

12. display units as claimed in claim 11, wherein the 3rd waveform portion has is being equal to the negative voltage time just Voltage time.

13. display units as claimed in claim 2, wherein the 3rd waveform portion that the barrier driver part will previously apply Anti-phase waveform be applied to liquid crystal barrier.

14. display units as claimed in claim 1, wherein each liquid crystal barrier in the liquid crystal barrier is in a first direction Upper extension and the multiple sub-electrodes being arranged side by side including liquid crystal layer and in a first direction,

Each in the plurality of sub-electrode includes

The the first main line part for extending in a first direction,

With the plurality of component in the first stub area, the second stub area, the 3rd stub area and the 4th stub area In each in equidirectional extension, first stub area and the second stub area are disposed in the first main line part Side on, and be partly interposed in centre with the second main line, the 3rd stub area is placed on relative to the first stub area The opposite side of one main line part, and the 4th stub area is placed on the relative of the first main line part relative to the second stub area Side.

15. display units as claimed in claim 14, also include：

First polariser, be provided on the side of liquid crystal layer and in the display surface of display unit with vertical direction or with Horizontal direction transmission-polarizing light；With

Second polariser, is provided on the opposite side relative to the liquid crystal layer of the first polariser and with vertical direction and level Another direction transmission-polarizing light in direction,

The component in component and the 4th stub area in wherein the first stub area is with inverse relative to horizontal direction Hour hands incline about 45 degree of direction and extend, and

The component in component and the 3rd stub area in second stub area is with clockwise relative to horizontal direction The direction for inclining about 45 degree extends.

16. display units as claimed in claim 14, wherein the barrier means include public electrode, the public electrode is common It is formed on the region corresponding to the multiple liquid crystal barriers on the opposite side relative to the liquid crystal layer of sub-electrode.

17. display units as claimed in claim 1, also include：

Backlight, wherein

The display unit is liquid crystal display component, and

18. display units as claimed in claim 1, also include：

Backlight, wherein

The display unit is liquid crystal display component, and

A kind of 19. barrier devices, including：

A kind of 20. methods for driving display unit, methods described includes：

The display image in display unit, wherein

Each in the barrier drive signal includes